Home / 419,830,371.18-579,575,664.78-261,111,653.64

Finding the Fourth Proportional to 419,830,371.18, 579,575,664.78 and 261,111,653.64

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Solution

The fourth proportional to 419,830,371.18, 579,575,664.78 and 261,111,653.64 is: 360,464,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,830,371.18 : 579,575,664.78 = 261,111,653.64 : x
  2. Step 2: Convert to fraction form
    419,830,371.18/579,575,664.78 = 261,111,653.64/x
  3. Step 3: Cross multiply
    419,830,371.18x = 579,575,664.78 × 261,111,653.64
  4. Step 4: Simplify right side
    419,830,371.18x = 151,333,960,240,208,096
  5. Step 5: Solve for x
    x = 151,333,960,240,208,096/419,830,371.18
  6. Step 6: Final answer
    x = 360,464,536.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.